I think if += would always have to make a copy, I would have opted to not support it for lists at all and just say .extend(), which does work in that tuple case.
为躲避硬件供应链血战，魅族舍弃了“躯体”，但能否让“灵魂”成功“附体”外部硬件，还有待观望。而整个手机行业则必须在涨价、萎缩与转型的阵痛中，寻找新的生存法则。
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